Cold-weather starter for motor-driven vehicles



E. C.'AND E. A. GEHRKE.

COLD WEATHER STARTER FOR MOTOR DRIVEN VEHlCLESf APPLICATION man JULY29.1921.

1 ,419,840. v Patented June 13, 1922. D 'Z '12 10 D 29 a 2g INVENTORS5.6. 6 E Hf? 5 nmmsrs EWALD CtuGEERKE AND EMI L A. GEHRKE, oroHELmtwAsIiInGToN.

COLD-WEATHER STARTERFOR MOTOR-DRIVEN vnnrepnsi T 0 all whom it mayconcern: Be it known that we, EwALn C. GEHRKE and EMIL A. GEHRKE,citizens of the United States, and residents of Chelan, in the county ofChelan and State of lVas'hington, have invented a new and Improved Cold-VVeath'er Starter for Motor-Driven Vehicles, of which the following is adescription.

Our invention relates to means for priming the motor of'a vehicle incold weather, and has for its general object to provide a device for theindicated purpose which will overcome the disadvantages of a primerdependent on-engine suction for thesfeed of the priming fuel and at thesame time will avoid the use of pump or like pressure device to cause afeed of the priming fuel. In starters requiring the ChOkiIlg of themixing chamber in order to obtain the increased suction, the chokingreduces the air supply so that it is disproportionate to the volume ofgasoline and fails to carry the gasoline in sufficient quantity to theintake manifold. We avoid the choking by delivering the priming chargein the form of a spray or jet so that the atomized fuelmay be the morereadily carried to'the intake manifold by the infiowing air, the liftingaction required of the air being minimized when the priming chargeisatomized; v

Further objects ofthe'invention are to avoid the necessity ofpre-heating the priming charge and to provide a priming device whichinvolves the minimum cost of manufacture andof a character to promoteconvenience in the emplacement of the device.

The above and otherobjectsas will ap-' Y pear are attained" by'aprimerhaving the novel features hereinafter particularly described andclaimed.

Reference is to be had to the accompanying drawings forminga partof thisspecification, it being vunderstood that the draw ings are merelyillustrative of one example of the invention. 7

Figure 1 is a front elevation of our im-' proved device showing the sameinposition;

Figure 2 is an enlarged partly sectional plan view of the device;

Figure 3 is Figure 2;

a section on the line 3-3,

sates Parent a.

Specification of Letters Patent. Patgnted June 192 2. i

Application filed'J'uly 2a, 1921; Serial no.4sa411fi Figure 4 is asection on the line 4 4,-

Figure 2;

Figure 5 is a fragmentarysectional plan view of the device slightlymodified. In carrying out our invention in accordance with theillustrated-example; we provide a valve having a casing 10 and asepa 3rate elongated plug 11 therein, the casing being clamped between anannular shoulder or collar 12 on said plug near oneerid; and a washer 13pressed by a cap nut- 14 screwing onto the plug 11 at the opposite endfiThe plug has an axial bore 15 and has transverse ports 16 diametricallyopposite leading radially outward from the'bore 15 into the annularchamber 18 formed by the casing 10. A cylindrical strainer -17;is'em-' gployed in practice surrounding the plug 11 and requiring the primingcharge to pass through said stralner from the ports 16: t0

the chamber 18.

The casing 10 has a lateral outlet 19ata side thereof which isinternally threaded to receive the threads 20 of a nipple 21 formed onan atomizer 22 from which the priming fuel'is discharged. The atomizer22 has in practice a flat form adapted to rest on the top of thecarbureter A between the same and the flange 'of' the intake manifold Bof a gasoline motor C, it being understood that the in ention isapplicable to' any ap proved carburetor and motor. 'The atomizer 22 isformed with opposite edgeflanges 23 having holes 24 for the stud boltsD' that I secure to the intake manifold B te the carbureter.

The valve plug 11 beyond the flange valve through the bore 15 andcap nut14, the rear end of the stem being formed with an eye 2 9 or othersuitable means for the connection of an operating means 30, generallyconsistlng of a wire extending to a point for convenient manipulation bj the chaulfeur. A coil spring 32 surroun s the stem 28 between the eye29 and the cap'nut 14 and is secured to both in a manner tending toretract the valve stem after a pull 27, the stem 28 of which extendsfrom said 35 fices 38 -.The different forms of the tubes on the wire 30and thereby tending to'maintain the needle valve 27 to its seat closingthe inlet to the axial bore 15 of the valve. The stem 28 within the plug11 is of increased diameter as at 81 to thereby provide a secondaryvalve for closing the lat- I eral outlet ports 16 in addition to theclosing of Thus, prevented even if the needle valve should not effect atight closure of the inlet at 26. The threaded end 25 receives a cap nut33 which serves to clamp to the valve one end of a length of hose 84: orother pipe connection, the opposite end of which is connected toa'T-iitting 35 in the gasoline supply pipe E adjacent to the connectionof said pipe with the float chamber of the carbureter A.

The atomizer 22 has fitted therein short lengths of copper tubing 36which communicate at their outer ends with the bore 37 of the nipple 21.In the form shown in Figure2 the tubes 36 have a longitudinal series ofjet orifices 38 and said tubes follow the cylindrical wall of thecentral opening 39 formed in the atomizer to register with the mixingchamber ofthe carbureter and with the inlet 26 by the needle valve 27.

the flanged neck of the intake manifold B.

In the form shown in Figure 5 the tubes 36 communicate with the interiorof the nipple 21 but instead of a longitudinal series of jet orifices,the terminal ends of the tubes are directed laterally inward to-'wardthe center of the opening 39 and formed in their extreme ends withjet ori- 86, d6 adapt the device to'a carbureter either of the type thatis bolted horizontally or that provides for the bolting on of thecarbureter vertically.

With a dev ce constructed and arranged asldescribed the hose or pipe 31' will be in constant communication through fitting with the gasolinesupply pipe E and upon the valves 27 31 being moved to the open positionby a pull on the wire 30, fuel will freely flow into the bore 15 andthrough the .ports 16 to the casing 10 to pass out through the nipple 21to the atomizing pipes 36 to :the mixing chamber of the carbureter andto the intake manifold B. it will be observed that the opening ofthe-valve'is in dependent of the choking of the carbureter by operatingthe lever F of the choker rod G so that'the normal air inlet of thecarbureter is av-ailedof during the priming. It

will-be observed also that there is no special provision required to bemade for installing @an-d the connection Pb and supporting theattachment since the securingof the atomizer 22 positions the valve withthe gasoline supis permanently established by the con-- nectionof thehose with the fitting 35.

.Wewould state in conclusion that while the illirstrated exampleconstitutes a practhe flowof fuel to the casing 10 is tical embodimentof our invention, we do not limit ourselves strictly to the mechanicaldetails herein illustrated, since manifestly the same can beconsiderably varied without departure from the spirit of the inventionas defined in the appended claims.

Having thus described our invention, we claim V 1. A priming deviceincluding a valve casing, an atomizer disposed in a plane transverse tosaid casing and adapted to be secured between. an intake manifold and acarbureter to direct a priming charge to the fuel mixing chamber,said'atomizer presenting an opening to register with the in take andcarbureter and havingmembers to be fastened with the tastening'of thecarbureter to the intake flange, said casing having a lateral outlet andthe atomizer having a lateral inlet connected with said outlet tosupport the casing on the atomizer, a plug in said casing and formedwith an ing thereto, and a lateral outlet between its ends leadingtherefrom, to the interior of the valve casing, a cap nut on the plug atthe rear end, a valve stem axially movable axial. bore having an inletat one end lead-1 in said plug and. extending through the capped rearend thereof, said stem having valves thereon controlling respectivelythe inlet and the outlet of said plug, means to operate said valve stem,

and means to eonnect the inlet end of the plug with a gasoline supplypipe.

2. A priming device including an atomizer presenting a central openingto register with an intake and oarbureter and having means to secure thesame between the intake flange";

and the carburetor, 1 said atomizer having et orifices at the openingthereof and having a lateral 1nlet,a valve casingconnected with saidinlet and supported thereby, a

valve plug in said casing and formed with forms an 3. A priming deviceof the classdescribed including an atomizer adaptedto be secured betweenan intake manifold and a carbureter, and presenting an opening toregister with both, said atomizer having an inlet and having jetorifices at said opening for the discharge of priming fuel to the mixingchamber formed by the carbureterand inthe take manifold, a-valvecasingsupported by the atomizer and having an outlet communisaid valve stem,and means eating with the inlet of the atomizer, a

plug extending through said casing and having a flange, a capnut on theplug at the rear end and serving to clamp the valve casing'between saidnut and the flange of 1" 'valve to control said inlet, the end of thestem extending beyond the rear end of the plug and its cap forconnection with an operating means, and a cap on the inlet end. of theplug adapted to secure a hose thereto for connecting the valve With agasoline 10 supply pipe.

EWALD C. GEI-IR-KE. EMIL A. GEHRKE.

